Surprised that no one had yet recommended pineappling, I was just about to do so
Probably not a fluke. If you use a loose (but it doesn't have to be excessively so), not-too-tight scrunchie, it should always work without denting. It also gives some lift to the top.
I pineapple, and thenif the ends aren't so curly, I sometimes scrunch a little plain FOTE aloe gel on the ends, and they curl back up nicely. Of course, it's completely dry by morning and takes very little scrunching unless it was applied over a really hard gel. Just taking it down from the pineapple mostly breaks it back up.
If you hair's long enough, you can also try just spreading it out on the pillow above your head rather than pineappling. This also works well for me unless I'm having a real restless night.